Waterproof insulating fiber sheet.



G. H. ELLIS,

WATERPROGP INSULATING 4FIBER SHEETx APPLICATION FILED 0GT.25, 1911.

r. L 6J 3 Lm Patented Nov. 3, 1914.

5W It f. @5 MIL/fe@ 05 )als Aborney n l. appertans to make GEORGE H. ELLIS, 2115" Si?. PUL, MXNNESGLA.

To @ZZ "whom, it may conc-emi Re it known that GEORGE Exim, a czen of the United lates, residing' at Si. Pauh in the sounty Of Ramsey and ms of Mnnesota, have invenfi Germn new m usef 11 mprovemenils in aterproo insu Iatng Fiber Shaets; mdv I do bimby del.- ca'e the olowing to bwaull, clear? :m61 exact ascrption Gf the invention, su'ca' will enabe ohers slled in the art to whizh and use the; sz'mfs. y

Fibmus insuating shees of" the avs character have a. ve'y high heat insulating; capaciy which is due partly tim tumm or cemm form 0f the fibers' themselves? and part ta the very luge number of air cells or uaac aia chambers forme in h@ ody nf ,the mass beiaween the x'bam heie :md in which the air is Qagec. Thess bmus Sheets have ileir highst haat nsuatig quality when dwf? at which tima the greats@ amount of air is caged in the mjwms ci?? cells in and between the fibers thm When such sheets become dimmi @heir insulzing quality is deem-mai and when @hay are very Wet or sai-awaited with 'Wat-er., he'x heat insuating Quaizy is neaz'y 0i* cm'npetely destroyed. Even water pmmg materials appe to he fxbrus grater @r ess extend, thereby reducing he amoun of ed air cage in the cells, and come Spondn 1y decreasing h@ insulaing e cency the Shasta.

n the construction of rsriymtor cam,

anc ixe refigez'ats, it new the common praece to iuerine the Wns hreo Wh 'bzo's ns'uaiiag Sheets, such as ax feit o? Sheets of fated and ntertanged fax or animal bers. When thes orous shees :we 'nus applied in refrigerators, the owef porons thereof ccm@ i'ao con'act with the Water from the melad ice, and thi@ Water, b v onplary atraction, is omried upward into the brous sheets making the same wet, nealy or quite nhugghut their @mira bodies, and thus nery or que festroying their heat nsuatng quality have found. ihat I am! Marcom@ h@ and other' porabe other vegembe or i l f I MIE but this. eatnie constitutes no part of the present invention. The walls or" the car provided with interposed sheets 6 of f iax felt or similar fibrous material. Preferably, the iibrous insulating sheeirs employed are of the character disclosed and claimed in Letters Patent 908,681, issued to James E. Lappen, of date, January 5th, 1909, and entitled Flax felt. The lower portions of the felt sheets 6 marked 6, and shown in darker lines than the bodies of the said sheetsyare saturated with' the Water piooiing material, preferably eoniposed of the materials above noted. portions 63 are the only portions W 'fob come intoycontaet with Water from t e melting ice, which Water runs from the door through the various lower joints in the v i'ialif structure and has hitherto been the canse of 'making nearly the entire bodies of body are, as shown,

` the Wall insulating sheets Wet or damp.

v Nl'iatl claim is:

1. I A fibrous heat insulating sheet adapted for use as asheatli'ing in a refrigerator or lire oonstruction, and having that portion t'Jfiereof.y which comes in Contact With the water oitbe refrigerator treated with Waterprooing material to prevent moistening of the entire sheathing by capillary notion,- but having the main l withsuch waterproofing material whereby saidl bodyl portibnfretaigne its maximum heat insulating properties- V c 2., heat insillating sheathing for refrigerators and oifbrous heat insulating sheets, that portionoi 'certain of said sheets which Contacte body portion untreated tlrelike, comprising a plurality l Limbes with the water oi'the refrigerator being treated with a waterproofing material to prevent the entire sheathing being moistened by capillary action, the remaining portion osaid' sheets being untreated'-vrith said Waterpiooiing material to maintain 'their maximum heat insulating properties.

3. A fibrous heatinsulating sheathing for' refrigerators and the like, having the lower edge portion thereof 'which contacts with the Water of the refrigerator treated with Waterproofing material to prevent 1noistening of 'the entire. sheathingby capillary ac-- tion, the upper. main body portion of the sheathing beingy untreated with said material whereby the maximum heat insulating qualities-ot the main body portion are re tained.'

Li. A fibrous heat insulating. sheet adapted for use. as sheathing, for refrigerators and the likea and haring a limited edge portion thereof which contacts with the Water of the refrigerator treated with waterproofing material composed, et wax tailings and paraiin wao:- to prevent the entire sheathing beingv moistened by Capillary action, but having its inain bod'y portion untreated with or ree from said Waterprooling material, whereby the maximum heat insulating properties thereof'. me. retained.

In testimony whereof I aiiix my signature in presence of'two Witnesses.

GERGE l. ELLS.

Witnesses: y l

Bernier, G. WHEELER,

Kanone. 

